by cbrookallred | Mar 23, 2017 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
Astronauts’ brains change shape during spaceflight, according to a study published in Nature Microgravity in December 2016. MRIs of the brains of 26 astronauts taken before and after missions show that their brains compress and expand in space. The longer the...
by cbrookallred | Mar 20, 2017 | Gr. 11-12 Physics
A pendulum is constructed from a 1.0-kg mass suspended from the ceiling, with a length of strong string long enough so that, when pulled about 40o from the vertical, the mass comes to nose level. The pendulum will be released from this position. The demonstrator is...
by cbrookallred | Mar 13, 2017 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
As March 2017 opens, the waxing crescent moon joins up with Venus, Mars (and Uranus) in the western sky after sunset. Mars remains a rather feeble evening object for the next few months, but March 2017 presents the grand finale of Venus, the sky’s brightest planet, as...
by msander | Mar 6, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry, Gr. 11-12 Physics
A frog’s tongue can get prey into its mouth in less time than it takes for you to blink – just seven hundredths of a second. The bug is whipped through the air with a peak acceleration of around 12Gs, way more than astronauts experience when launched into space,...
by msander | Mar 2, 2017 | Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
Observations over millenia and numerous experiments claim that warmer water freezes faster than cold water under identical conditions. Supported by Google Making & Science #ScienceGoals http://youtube.com/makingscience References: Mpemba Effect:...
by msander | Mar 2, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Physics
Bat-bot could one day aid in search and rescue operations. Learn more: http://scim.ag/2jVvS7V Read the research (free):...
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